Venetian blind cord and chain connecter



Aug. 9, 1938. w. J. STUBER VENETIAN BLIND CORD AND CHAIN CONNECTEROriginal Filed Dec. 3, 1935 Patented Aug. 9, 1938 UNITED STATES VENETIANBLIND con-n AND CHAIN CONNECTER 7 Walter J. Stuber, Philadelphia, Pa,assignor to -Carey-McFall 00., Philadelphia, Pa., a corporation of;Pennsylvania Original application December 3,1935, Serial No. 524725.Divided and thisapplication June 1 3, r l

1936, Serial No. 85,168

5 Claims.

This invention relates to Venetian blinds and particularly to theslat-tilting mechanism thereof. The present application constitutes adivision of my copending application Serial No. 52,725, filed December3, 1935.

The slat-tiltingmechanism of Venetian blinds in many instances includesan operating wheel which when turned in one direction tilts the slatsone Way and when turned in the opposite direction reverses the tiltingof the slats.

In some instances the tilting wheels are grooved sheaves about which atilting rope passes. This construction is satisfactory from the point ofquiet operation, but is unsatisfactory in many instances because ofrelative slippage between the rope and the sheave.

In other instances the tilting wheel is in the form of a sheave havingpockets in the groove of the sheave which receive individual balls of aball or bead chain which takes the place of the rope. This arrangementis satisfactory from the point of efficient operation but unsatisfactoryfrom the point of noise resulting from the hanging ends of the chainclattering against the window-frame in a breeze and also from the pointthat bead chain is relatively expensive as compared to rope or cord.

The object of the present invention is to combine the desirable featuresof the chain and rope in a single operating element While at the sametime eliminating the undesirable characteristics of each.

This object is primarily attained by providing a neat-appearingefficient and inexpensive connecter for the chain and the rope whichwill be fully disclosed hereinafter, reference being had to theaccompanying drawing, of which:

Fig. 1 is a side elevation of the means for attaching the pull cords ofthe tilting mechanism to the sheave chain thereof, in the process ofconnecting one to the other;

Fig. 2 is a longitudinal sectional elevation of the mechanism shown inFig. 1, with the attaching means in its ultimate position;

Fig. 3 is a side elevation of the mechanism shown in Figs. 1 and 2; and

Fig. 4 is a cross section taken on the line 44, Fig. 3.

In order to detachably connect the pull cords I to the tilting chain 2 adevice 3 of the character shown in Figs. 1, 2 and 3 is provided. Thisdevice comprises a substantially cylindrical longitudinally split sleeve4, the opposite edges 55 of the split 6 being serrated or undulated soas to interlock with each other about the upper end of the cord I, asshownin Fig. 3, for frictionally gripping said cord and to preventraveling of the embraced end thereof.

The side of the sleeve 4 opposite the split 6 is provided with alongitudinally extending neck 1 at the outer-end of which is asemi-spherical hollow head 8. The neck 1 is formed integral with the oneside of the body or sleeve 4 and with one side of the head 8. Integrallyconnected to the diametrically opposite side of the head is a dependingarm 9. At the free end of the arm 9 is a hand l0 having laterallyprojecting fingers or teeth II which, as shown in Fig. 2, are adapted tobe pressed into the cord l to prevent the cord from slipping axially ofthe sleeve or body 4 of the cord-chain connecter 3.

The hand 10 is arranged to be embraced by the upper end of the bodysleeve 4 when the same is pinched or closed about the cord I, thussecuring the hand in place, as clearly shown in Figs. 3 and 4, andwhereby the arm 9 is positioned opposite to the neck I to provide anopening I2 between the upper end of the body sleeve 4 and the lower endof the hollow semi-spherical head 8 for the passage of the end ball orhead l3 of the chain. 2, said chain being composed of a series of suchballs or beads connected together in spaced relation to each other by acentral cord or links M.

In order to make the ball I3 readily detachable and connectible from andwith the head 8 said head is slotted radially from the apex thereof tothe bottom edge thereof as indicated at M for the reception and passageof the link M which connects the end ball I3 with the next succeedingball of the chain.

I claim:

1. A one piece connecter comprising a clamping sleeve arranged toembrace and rigidly grip a rope adjacent one end thereof said sleevehaving a single longitudinal split extending from end to end of thesleeve, a chain receiving head on and formed integral with one end ofthe sleeve, and a projection integral with said sleeve and arranged toproject into the rope transversely thereof to prevent relative axialmovement between the rope and the sleeve.

2. A one piece connecter comprising a clamping sleeve arranged toembrace and rigidly grip a rope adjacent one end thereof said sleevehaving a single longitudinal split extending from end to end of thesleeve, a chain receiving head on and formed integral with one end ofthe sleeve, and a projection integral with and extending beyond saidsleeve at one end thereof and arranged to project into said end of thesleeve and pene-

